DENIAL PLAYBOOK · REFERRAL REQUIRED / ABSENT

How to appeal a Referral Required / Absent denial

A referral denial means an HMO or POS plan won't pay a specialist claim because the required primary-care referral wasn't on file or had run out.

Common code: CARC 288 (referral absent) / 287 (referral exceeded)

Why payers issue it

The referral was never obtained
It existed but wasn't linked to the claim
Visits went past the referral's authorized limit
The service was direct-access or emergent and didn't actually need one

What overturns it

Obtain a retroactive referral where the plan allows it
Supply the existing referral number tied to the claim
Show the benefit was direct-access or the service was emergent
Demonstrate medical necessity to support a retro referral request

Worth appealing? Referral denials are common in HMO books and frequently reversible, either with a retro referral or by proving one wasn't required in the first place.

Common questions

How do I appeal a Referral Required / Absent denial?

A referral denial means an HMO or POS plan won't pay a specialist claim because the required primary-care referral wasn't on file or had run out. To overturn it: obtain a retroactive referral where the plan allows it; supply the existing referral number tied to the claim; show the benefit was direct-access or the service was emergent; demonstrate medical necessity to support a retro referral request. The key is matching the documentation to the payer's own rule for referral required / absent denials.

Is a Referral Required / Absent denial worth appealing?

Referral denials are common in HMO books and frequently reversible, either with a retro referral or by proving one wasn't required in the first place. A no-risk recovery service makes it easy to find out, you only pay on what's actually recovered, so there's no cost to working the ones that are winnable.

How does Volari handle Referral Required / Absent denials?

Volari's AI agents identify referral required / absent denials in your written-off pile, build each appeal with the right documentation and payer-specific argument, file it, and follow it to payment. You pay 25% only on what's recovered, and nothing if nothing comes back.

Other denial types

Modifier 25 →Medical Necessity →Timely Filing →Prior Authorization →Bundling / NCCI Edits →Missing or Invalid Information →Coordination of Benefits →Non-Covered Service →Duplicate Claim →Experimental / Investigational →Downcoding →Eligibility / Coverage Not in Effect →Diagnosis Inconsistent with Procedure →Provider Not Eligible / Credentialing →Global Surgery Period (E/M During Global) →Frequency / Units Exceeded (MUE) →Step Therapy / Fail-First →Site of Service →Telehealth POS / Modifier →Auth on File but Still Denied →Out-of-Network / Network Status →Assistant Surgeon →New vs Established Patient →Drug / J-Code Units →Screening vs Diagnostic →LCD / NCD (Medicare Coverage Policy) →Documentation Insufficient →Corrected Claim Denied as Duplicate →

Volari's AI agentic crew that works your pile

The same AI agents that build and file your referral required / absent appeals inside the app, each a specialist at one part of the fight, paid only on what they bring back.

Reva

Lead

Cody

Coding

Denny

Appeals

Faye

Follow-up

Iris

Intel

See how many Referral Required / Absent denials you wrote off.

A free assessment shows your real recoverable number. No risk, paid only on what we recover.

Get your free assessment →Watch the agents work a denial →

Volari AI · no-risk denial recovery for independent practices · all denial types →